Introduction: Shoulder pain is the most common complaints in medicine and disorders attributed to the rotator cuff are the most common cause of shoulder pain. More than 50% of all shoulder pains are considered to be that related to tendinopathies of the rotator cuff, as supraspinatus in complete thickness tears and tendinosis1. Platelet rich plasma (PRP) is a preparation of concentrated autologous platelets containing growth factors and bio active substances essential to musculoskeletal healing. It involves minimum risk of immune reactions and transmission of infectious and contagious disease. With this we need assess the efficacy of PRP shoulder